Add mSourceDrawableId to copy constructor

The copy constructor of AdaptiveIconDrawable#LayerState currently does
not copy mSourceDrawableId from the original layer state. This prevents
drawables created from preloaded AdaptiveIconDrawables from having the
correct source drawable resource id.

Bug: 148488431
Test: CtsContentTestCases:android.content.pm.cts.PackageManagerTest
Change-Id: I7795a337a2a364677e375776c7aec5bc9189e0da

graphics/java/android/graphics/drawable/AdaptiveIconDrawable.java

@@ -975,6 +975,7 @@ public class AdaptiveIconDrawable extends Drawable implements Drawable.Callback
 
                 mChangingConfigurations = orig.mChangingConfigurations;
                 mChildrenChangingConfigurations = orig.mChildrenChangingConfigurations;
+                mSourceDrawableId = orig.mSourceDrawableId;
 
                 for (int i = 0; i < N_CHILDREN; i++) {
                     final ChildDrawable or = origChildDrawable[i];